Files
blis/kernels/zen
Vignesh Balasubramanian 81161066e5 Multithreading the DNRM2 and DZNRM2 API
- Updated the bli_dnormfv_unb_var1( ... ) and
  bli_znormfv_unb_var1( ... ) function to support
  multithreaded calls to the respective computational
  kernels, if and when the OpenMP support is enabled.

- Added the logic to distribute the job among the threads such
  that only one thread has to deal with fringe case(if required).
  The remaining threads will execute only the AVX-2 code section
  of the computational kernel.

- Added reduction logic post parallel region, to handle overflow
  and/or underflow conditions as per the mandate. The reduction
  for both the APIs involve calling the vectorized kernel of
  dnormfv operation.

- Added changes to the kernel to have the scaling factors and
  thresholds prebroadcasted onto the registers, instead of
  broadcasting every time on a need basis.

- Non-unit stride cases are packed to be redirected to the
  vectorized implementation. In case the packing fails, the
  input is handled by the fringe case loop in the kernel.

- Added the SSE implementation in bli_dnorm2fv_unb_var1_avx2( ... )
  and bli_dznorm2fv_unb_var1_avx2( ... ) kernels, to handle fringe
  cases of size = 2 ( and ) size = 1 or non-unit strides respectively.

AMD-Internal: [CPUPL-3916][CPUPL-3633]
Change-Id: Ib9131568d4c048b7e5f2b82526145622a5e8f93d
2023-10-16 07:26:27 -04:00
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2023-10-16 07:26:27 -04:00
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